Release: Babeltrace 2.0.0 "Amqui"

Release: Babeltrace 2.0.0 "Amqui"

Released at long last!

Adds the name and description of the release.

The ChangeLog is reset as we are starting a new release series afresh.
The ChangeLog of this release describes the changes that were
introduced between the fourth release candidate (rc4) and this
final version of Babeltrace v2.0.0.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: Id57d79cd0efba4aa0f8c699abe1def190dd841d7
Reviewed-on: https://review.lttng.org/c/babeltrace/+/2844
Reviewed-by: Philippe Proulx <eeppeliteloop@gmail.com>
Reviewed-by: Michael Jeanson <mjeanson@efficios.com>